In the news last week, the anonymous
developers of TrueCrypt very
publicly announced the discontinuation of TrueCrypt development, and
declared TrueCrypt "not secure." The vagaries and abruptness of the
announcement have caused a disturbance in the interweb at large. A search on
"TrueCrypt" yields no less than 27,000 hits categorized as
"News."

TrueCrypt has been a double-edged sword for
digital investigators. On one edge, TrueCrypt's wide availability means it has
been used to hide data from the eyes of investigators. Full disk, container,
and hidden container encryption have created "game over" situations
for investigators for years. Attendees of Guidance Software's Training
courses learn about common uses of TrueCrypt and practical techniques to deal
with them, including use of EnCase with tools like Passware.